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    Hello everyone, I am having a big problem here xD.

    Why do airplanes have to reach stratosphere before it actually can fly towards the destination. Why not just flying among the troposhere ? Flying at a high height only cause more danger and reduce safety . !!
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    Planes fly at higher altitudes because there's, for one, less air! The atmosphere is thinner higher up, so air resistance is reduced and less fuel is used. Obviously there is expenditure of altitude It can also be useful for planes to get above the cloud layer (you can often look out of a window and be above all the clouds) because then turbulence is reduced.
 
 
 
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